comes between the transponder antenna (usually located on the underside of the aircraft) and the ground-based radar antenna, the signal may be temporarily interrupted. Other limitations and anomalies associated with TIS are described in the AIM, Section 1-3-5.

TIS is unavailable at low altitudes in many areas of the U.S., particularly in mountainous regions. Also, when flying near the ‘floor’ of radar cov- erage in a particular area, intruders below the client aircraft may not be detected by TIS.

TIS information is collected one radar scan prior to the scan during which the uplink occurs. Therefore, the surveillance information is approximately 5 seconds old. In order to present the intruders in a ‘real time’ position, the TIS ground station uses a predictive algorithm in its tracking software. This algorithm uses track history data to extrapolate intruders to their expected positions consistent with the time of display in the cockpit. Occasionally, aircraft maneuvering causes this algorithm to induce errors in the GNS 530 display. These errors primarily affect relative bearing information and traffic target track vector (it lags); intruder distance and altitude remain relatively accurate and may be used to assist in “see and avoid”. Some of the more common examples of these errors follow:

When client or intruder aircraft maneuvers excessively or abruptly, the tracking algorithm may report incorrect horizontal position until the maneuvering aircraft stabilizes.

When a rapidly closing intruder is on a course that crosses the client aircraft course at a shallow angle (either overtaking or head on) and either aircraft abruptly changes course within .25 nm, TIS may display the intruder on the wrong side of the client.

SECTION 14

ADDITIONAL FEATURES

The preceding errors are relatively rare occurrences and are corrected in a few radar scans once the course has stabilized.

Users of TIS can render valuable assistance in the correction of malfunctions by reporting their observations of undesirable performance.

Reporters should identify:

Time of observation

Location, type, and identity of aircraft

Condition observed

Type of transponder, processor, and software in use

Since TIS performance is monitored by maintenance personnel rather than ATC, it is suggested that malfunctions be reported in the following ways:

By telephone to the nearest Flight Service Station (FSS) facility.

By FAA Form 8000-7, Safety Improvement Report, a postage-paid card designed for this purpose. These cards may be obtained at FAA FSS’s, General Aviation District Offices, Flight Standards District Offices, and General Aviation Fixed Based Operations.

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GNS 530(A) Pilot’s Guide and Reference

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3D Connexion GNS 530(A) manual 14-3

GNS 530(A) specifications

The 3D Connexion GNS 530(A) is a sophisticated avionics solution designed specifically for general aviation and business aviation environments. It serves as an influential tool for pilots, offering enhanced navigation and communication capabilities. This device is particularly popular among those operating in complex airspaces and those who require efficient flight planning and execution.

One of the standout features of the GNS 530(A) is its integrated GPS navigation system. This system provides accurate positioning and navigation data, utilizing high-sensitivity GPS technology that improves situational awareness and safety. The device displays a comprehensive moving map, enabling pilots to visualize their flight routes, airspace boundaries, and nearby airports easily. Furthermore, it utilizes WAAS (Wide Area Augmentation System) capabilities, enhancing the accuracy of GPS signals and allowing for precision approaches.

In addition to GPS functions, the GNS 530(A) integrates VHF communication capabilities. This function allows pilots to communicate effectively with air traffic control and other aircraft, ensuring smooth operations in busy airspace. The intuitive interface includes a large, high-resolution display that presents essential flight information, making it easy for pilots to monitor vital data at a glance.

Another significant characteristic of the GNS 530(A) is its ability to interface with other avionics and flight management systems. This connectivity streamlines the flow of information between systems, allowing pilots to access a broader range of functionalities and enhancing overall flight management. With features like flight plan creation and editing, pilots can easily adapt to changes in their route.

The device also incorporates advanced safety features, such as terrain awareness and warning systems (TAWS) and traffic information systems (TIS). These technologies provide real-time alerts, helping pilots avoid potential hazards and maintain safe distances from other aircraft.

The GNS 530(A) is renowned for its durability and reliability, meeting rigorous aviation standards. Its user-friendly design ensures that pilots with various skill levels can efficiently use its features, making it an invaluable tool for enhancing airborne operations. Overall, the 3D Connexion GNS 530(A) significantly contributes to the efficiency, safety, and enjoyment of flying, representing a vital component in modern aviation avionics.